他们认为，放松筛选严格性是一种母体的选择性反应，这可以解释唐氏综合症发病率随母亲年龄增长而升高的原因。
They believe that this relaxed filtering stringency is an adaptive maternal response and it might explain why the rate of Down Syndrome accelerates with increasing maternal age.
对于未来，我唯一能够确定的是：大多数人都会选择不从“母体”中醒来。
For the future, I can only be sure about one thing: most of the people will choose not to wake up in the Matrix.
对接枝母体胶料和丙烯酸单体进行了选择。
Selection of master rubber and acrylic monomer was described.
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